Ewing theory of ferromagnetism

Ewing theory of ferromagnetism

[′yü·iŋ ‚thē·ə·rē əv ‚fe·rō′mag·nə‚tiz·əm] (solid-state physics) Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely about its center under the influence of applied fields and other magnets.